What does the Glow-worm Flexicom F37 fault code mean?
The F37 fault code on a Glow-worm Flexicom boiler indicates a problem with the combustion chamber, which can affect the boiler’s ability to operate efficiently and safely. This fault typically requires professional attention to ensure proper diagnosis and repair.
Common Causes
- Blocked Flue: A blockage in the flue can prevent proper ventilation, leading to combustion issues.
- Dirty Heat Exchanger: A buildup of debris or soot in the heat exchanger can disrupt the combustion process.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any issues related to gas or electrical components, including the combustion chamber. Attempting to fix these issues without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F37 fault code is around £250 to £400, depending on the specific issue and parts required. This cost reflects the need for professional labour and potential replacement of components like the heat exchanger or flue system.